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| Patents for E. M. Chapin | |||||
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| Number | Date | Patentee | Title | Type | |
| 76,051 | Mar. 31, 1868 | S. Rust, E.M. Chapin | Improvement in Carpenters' Planes | plane fences | |
| 279,885 | Jun. 19, 1883 | A.E. Rust, S.R. Rust | Blockplane with Hinged Sole | plane beds | |